掌握小麦生长发育规律,抓好管理措施,是按客观规律办事,提高科学种田水平,争取小麦丰收的重要途径。概括起来就是抓好“三个三”。一是三个生长发育阶段:幼苗期、器官建成期、籽粒形成期;二是三个主要矛盾:幼苗期是温度、器官建成期是养分、籽粒形成期是水分;三是三项主要管理措 Grasp the law of wheat growth and development, do a good job in management measures, is to act according to objective laws, improve the scientific farming level, strive for an important way for wheat harvest. To sum it up is to do a good job “three three.” First, three stages of growth and development: seedling stage, organ build-up period, grain formation period; the second is the three main contradictions: seedling temperature, organ build-up period is nutrient, grain formation is water; third is the three major management measures